{"id":"CVE-2019-1937","aliases":["EUVD-2019-10494","GHSA-6j24-rh4h-rq7f"],"status":"published","title":"Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.75863,"percentile":0.99529,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287"],"published":"2019-08-21T18:25:13Z","modified":"2026-06-17T02:29:38Z","exploits":[{"source":"exploitdb","id":"EDB-51589","title":"Cisco UCS-IMC Supervisor 2.2.0.0 - Authentication Bypass","type":"webapps","platform":"hardware","date":"2023-07-15","url":"https://www.exploit-db.com/exploits/51589"},{"source":"metasploit","id":"exploit/linux/http/cisco_ucs_rce","title":"Cisco UCS Director Unauthenticated Remote Code Execution","type":"exploit","platform":"Unix","date":"2019-08-21","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/linux/http/cisco_ucs_rce"}],"products":[{"vendor":"cisco","product":"cisco unified computing system director"},{"vendor":"cisco","product":"integrated_management_controller_supervisor"},{"vendor":"cisco","product":"ucs_director"},{"vendor":"cisco","product":"ucs_director_express_for_big_data"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imcs-ucs-authby","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://seclists.org/bugtraq/2019/Aug/49","tags":["mailing-list","x_transferred","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.html","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2019/Aug/36","tags":["mailing-list","x_transferred"]},{"url":"http://packetstormsecurity.com/files/154308/Cisco-UCS-Director-Unauthenticated-Remote-Code-Execution.html","tags":["x_transferred"]},{"url":"http://packetstormsecurity.com/files/173531/Cisco-UCS-IMC-Supervisor-2.2.0.0-Authentication-Bypass.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1937"},{"url":"https://github.com/advisories/GHSA-6j24-rh4h-rq7f"}],"sources":{"cve":[{"id":"CVE-2019-1937","title":"Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.","status":"published","published":"2019-08-21T18:25:13.293Z","modified":"2024-09-16T22:52:10.45Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:25.661187Z"}],"euvd":[{"id":"EUVD-2019-10494","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.","status":"published","published":"2019-08-21T18:25:13Z","modified":"2024-09-16T22:52:10Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:54:58.800859Z"}],"ghsa":[{"id":"GHSA-6j24-rh4h-rq7f","title":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller ...","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.","status":"published","published":"2022-05-24T16:54:25Z","modified":"2023-07-17T18:31:26Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:54:42.596364Z"}],"nvd":[{"id":"CVE-2019-1937","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.","status":"published","published":"2019-08-21T19:15:15.403Z","modified":"2026-06-17T02:29:38.783Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:05:23.725587Z"}]}}